When did you take the Adderall and Valium?
How much Valium did you take?
Do you have a tolerance to Valium or other benzos?
Something would certainly happen if you started drinking. Valium is a long-acting benzodiazepine so unless you took it yesterday it is going to be have a synergistic effect with alcohol. Cannabis, on the other hand, works nicely with both Adderall and Valium.
I actually took a Dexedrine, an Ativan and smoked weed about 20 minutes ago, I've had one can of Pabst and that's all the alcohol I'm going to be consuming tonight.
I personally think anything more than two or three drinks ruins a benzo high and mutes out the good side of cannabis